[Twg] [Discuss] T10 End-to-End Data Integrity HLD
Johann Lombardi
johann at whamcloud.com
Sat Apr 21 08:22:03 UTC 2012
Hi Alexey,
On Saturday, April 21, 2012, Alexey Lyashkov wrote:
>
> you are wrong. It's Andrew HLD. possible it isn't clear - but per internal
> discussion, server isn't validate checksum before HCA. Using a HCA to
> checksum validation and provide end to end integrity checks - main idea of
> using T10 in lustre.
> per my previous comment server validation isn't need - because client will
> resend IO request in both cases - checksum error or real IO error.
This means that you can't use asynchronous journal commit in conjunction
with T10, right?
Johann
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